There is the extremely high radiation in the detector of ATLAS for LHC (Large Hadron Collider). The upgrading ATLAS Liquid Argon Calorimeter readout optical data link includes on-detector (front-end) and off-detector (back-end). There are the data stream burst continuous multi-bits errors and bit slip when the high-speed data are collected and transferred under the extremely high levels of radiation environment on the front-end. The data is restored on the back-end by FPGA. The design and implementation of error simulator based a Xilinx Kintex 7 for front-end is proposed in this paper to support the design and simulation test of the decoder and encoder of LOCic. Experimental and data analysis show it is valid.
